Map of Brooklyn, NSW 2083

Brooklyn is a town in the state of New South Wales, Australia, in the local government area of Hornsby Shire with the population of 722 as of the 2016 census. Despite sharing the name, this small New South Wales town has no relation to the borough of Brooklyn in New York City.

Brooklyn provides convenient access for north shore residents and day trippers to the beautiful Hawkesbury River and Pittwater waterways for boating, swimming and fishing, and to Kur-ring-gai Chase and Muogamarra national parks for bush walking and scenic views. The town provides a surprising range of amenities and activities, while maintaining a quiet village atmosphere. Hornsby Council is currently developing a 'Brooklyn Master Plan' to provide for further improvement of the amenities in the area.

Brooklyn occupies a strip of waterfront land aligned east–west along the southern bank of the Hawkesbury River. The Hawkesbury River train station provides regular services for easy access to the city, north shore, and central coast. The Pacific Highway and the M1 Motorway are both nearby and provide easy access to the town. Ku-ring-gai Chase National Park borders the suburb to the south. Long Island runs parallel with the suburb on the opposite side of Sandbrook Inlet and is joined to Brooklyn by the railway causeway. Dangar Island is sited to the north east.